Tool
Jest
JavaScript/TypeScript test runner with built-in mocks, snapshots and parallel execution; sensible default for unit testing across the React/Node ecosystem.
Key points
- ▸Per-file parallel execution with test isolation; each worker runs in its own Node process.
- ▸Module and function mocks (jest.mock, jest.fn) without dependency injection or external libraries.
- ▸Snapshots help catch regressions in complex output; review them intentionally rather than accepting blindly.
Seed content from the CV; pending manual review or Trilium ingestion.